ab = {
    'sjp': '13365745813',
    'xuxu': '13329254307'
}
print('my phone number is', ab['sjp'])

for name, phone in ab.items():
    print('{0}\'s phone number is {1}'.format(name, phone))

ab['mother'] = '13855834068'
if 'mother' in ab:
    print('monther\'s phone number is', ab['mother'])
